Rotary compressor

A rotary compressor, comprising:

• a casing;
• a cylinder disposed in an inner space of the casing to define a compression space;
• a roller disposed on a rotational shaft so as to be rotatable in an inner space of the cylinder and eccentrically located with respect to a center of the compression space to have a contact point close to an inner circumferential surface of the cylinder;
• at least one vane slidably inserted into at least one vane slot provided in the roller to rotate together with the roller;
• a main bearing and a sub bearing, respectively, disposed on both sides of the cylinder in an axial direction to define the compression space together with the cylinder;
• and
• at least one outflow passage through which refrigerant flows from the compression space to the inner space of the casing, wherein the at least one outflow passage comprises:
• at least one first outflow guide portion disposed in the main bearing or the sub bearing;
• at least one second outflow guide portion formed through both ends of the roller in the axial direction and communicating with the at least one first outflow guide portion;
• and
• at least one third outflow guide portion disposed in a bearing of the main bearing and the sub bearing opposite to the bearing of the main bearing and the sub bearing provided with the at least one first outflow guide portion based on the roller, and communicating with the at least one first outflow guide portion through the at least one second outflow guide portion which is disposed from the one end to the other end of the roller in the axial direction.